Cheapest return flights from Lisbon to Oslo in September from $231

AirHint found the following cheapest return flights from Lisbon (LIS) to Oslo (OSL) in September 2026 (see full year).

Return flights

22 Sep - 29 Sep Ryanair
05 Sep - 13 Sep Norwegian
22 Sep - 29 Sep TAP direct
14 Sep - 23 Sep TAP
14 Sep - 23 Sep TAP direct
05 Sep - 13 Sep TAP direct
13 Sep - 18 Sep TAP direct
09 Sep - 30 Sep Norwegian direct
23 Sep - 30 Sep Norwegian direct
26 Sep - 30 Sep Norwegian direct
23 Sep - 13 Oct Norwegian
26 Sep - 13 Oct Norwegian
26 Sep - 15 Oct Norwegian
27 Sep - 13 Oct Norwegian Air Sweden AOC
27 Sep - 15 Oct Norwegian Air Sweden AOC

Also check the deals for one-way flights from Lisbon to Oslo in September.

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